Effect of transcatheter aortic valve size and position on valve-in-valve hemodynamics: An in vitro study Vinayak N. Bapat, FRCS(CTh) The Journal of.

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Presentation transcript:

Effect of transcatheter aortic valve size and position on valve-in-valve hemodynamics: An in vitro study Vinayak N. Bapat, FRCS(CTh) The Journal of Thoracic and Cardiovascular Surgery Volume 154, Issue 1, Pages 58-59 (July 2017) DOI: 10.1016/j.jtcvs.2017.03.089 Copyright © 2017 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 CoreValve Evolut R (Medtronic, Minneapolis, Minn). A, Image of a size 26 Evolut R highlighting the frame geometry. The best function is obtained after full expansion and with maintenance of the geometry of the frame. B, A size 26 Evolut R in a size 23 Hancock II (Medtronic) valve (true inner diameter of 18.5). This image demonstrates the inability of the Evolut R frame to deflect the Hancock II stent post outwardly. C, A postimplantation balloon dilatation was performed because of unsatisfactory gradients. Although the intervention resulted in acceptable gradients, it also resulted in unsubtle stent frame deformations at the inflow (white arrow) and the mid portion (black arrow). The Journal of Thoracic and Cardiovascular Surgery 2017 154, 58-59DOI: (10.1016/j.jtcvs.2017.03.089) Copyright © 2017 The American Association for Thoracic Surgery Terms and Conditions

The Journal of Thoracic and Cardiovascular Surgery 2017 154, 58-59DOI: (10.1016/j.jtcvs.2017.03.089) Copyright © 2017 The American Association for Thoracic Surgery Terms and Conditions